Finding the Third Proportional to 111,816 and 242,568

Step by Step Solution

1. Step 1: Write the proportion equation
   111,816 : 242,568 = 242,568 : x
2. Step 2: Convert to fraction form
   111,816/242,568 = 242,568/x
3. Step 3: Cross multiply
   111,816x = 242,568 × 242,568
4. Step 4: Simplify right side
   111,816x = 58,839,234,624
5. Step 5: Solve for x
   x = 58,839,234,624/111,816
6. Step 6: Final answer
   x = 526,214.80